Hi
I’ve commented a couple times on this site about the “Super Slant full length bed wedge” Amazon $189.
They come in 1/2 a queen or king.
I tried 3 different 3 foot short wedges. They created more problems than they solved. Always sliding down (injured my neck once) you can only lay on your back, uncomfortable at the hips.
I also have a recliner and an adjustable bed, but prefer this for sleeping. I sleep through the night on my side.
It’s very comfortable. Best thing I’ve found. There are a couple other items on Amazon that can be used along with this if you need for more height. Full length wedge is the way to go.